[3] The first eight were built for the Minami-Chosen Railway, with Hitachi's Kasato factory[3] and Kawasaki each building four units; these were bought by Sentetsu in 1936 and numbered 341-348.

In 1939 and 1941, a total of nine were built by Kawasaki and Hitachi Kasato for the Gyeongchun Railway;[3] these were assembled in Korea at Sentetsu's Busan shops and numbered プレナ85 through プレナ93.

Nineteen locomotives of the Sentetsu Purena design were built for the South Manchuria Railway (Mantetsu) in Japan in 1935.

[7] The nine Puresa-class locomotives that Mantetsu had assigned to its Rajin depot were taken over by the Korean State Railway after the war.

[9] The one unit known to have omitted the initial '1', number 307, was inspected by Kim Jong-il as a child at Rajin Station on 6 September 1954.